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UID:20260807T012625EDT-0330joh83E@132.216.98.100
DTSTAMP:20260807T052625Z
DESCRIPTION:George Haller\n91Ë¿¹ÏÊÓƵ\nWe describe a mathematical th
 eory that clarifies the\nrelationship between Lagrangian Coherent Structur
 es (LCS) in moving\ncontinua and invariants of the Cauchy-Green strain ten
 sor field.\nMotivated by physical observations of trajectory patterns\, we
 \ndefine hyperbolic LCS as material surfaces that extremize an\nappropriat
 e finite-time normal repulsion or attraction measure.\nSolving this variat
 ional problem leads to computable sufficient and\nnecessary criteria for L
 CS. We also discuss constrained LCS\nproblems\, as well as the robustness 
 of LCS under perturbations\,\nsuch as numerical errors or data imperfectio
 n. In several examples\,\nwe show how these results resolve earlier incons
 istencies in the\ntheory of LCS.\n
DTSTART:20101004T200000Z
DTEND:20101004T210000Z
LOCATION:Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke 
 Ouest
SUMMARY:A variational theory of hyperbolic Lagrangian coherent structures
URL:/channels/event/variational-theory-hyperbolic-lagr
 angian-coherent-structures-168231
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